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Finding the Fourth Proportional to 57,998,889.60, 86,995,569.60 and 19,656,643.20

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Solution

The fourth proportional to 57,998,889.60, 86,995,569.60 and 19,656,643.20 is: 29,484,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998,889.60 : 86,995,569.60 = 19,656,643.20 : x
  2. Step 2: Convert to fraction form
    57,998,889.60/86,995,569.60 = 19,656,643.20/x
  3. Step 3: Cross multiply
    57,998,889.60x = 86,995,569.60 × 19,656,643.20
  4. Step 4: Simplify right side
    57,998,889.60x = 1,710,040,871,607,966.50
  5. Step 5: Solve for x
    x = 1,710,040,871,607,966.50/57,998,889.60
  6. Step 6: Final answer
    x = 29,484,027.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.